US3676220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facilitated transport liquid membrane
Assignee: General Electric Co
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Filing: 1969-02-27
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Granted: 1972-07-11
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Expires: 1989-02-27
Abstract
Abstract A CONFINED LIQUID MEMBRANE HAVING AN ELECTRODE IN CONTACT WITH EACH SURFACE THEREOF IS PROVIDED WITH A CONCENTRATION OF A NON-VOLATILE TRANSPORTING SPECIE IN SOLUTION THEREIN, WHICH TRANSPORTING SPECIE CAN BE OXIDIZED OR REDUCED FROM A FIRST TO A SECOND VALENCE STATE. THE TRANSPORTING SPECIE MUST BE REACTIVE WITH A SPECIFIC GAS IN AT LEAST ONE OF THE MULTIPLE VALENCE STATES. IF THE TRANSPORTING SPECIE IS REACTIVE WITH THE GAS IN BOTH VALENCE STATES, SUCH REACTIONS MUST HAVE DIFFERENT EQUILIBRIUM CONSTANTS. BY BRINGING THE SPECIFIC GAS INTO CONTACT WITH ONE SURFACE OF SUCH A LIQUID MEMBRANE AND APPLYING AN
Inventors
- 👤 William J Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:54
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/22; B01D53/228; B01D53/32; B01D53/326; B01D61/00; B01D61/38; G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/333; G01N27/3335; H; H01; H01M; H01M8/00; H01M8/20; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y10; Y10S; Y10S204/00; Y10S204/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |